Job Expired

Senior Backend Engineer (Transit)

P
Paxos Labs

Remote ยท New York

Full Time Posted: Sep 29, 2026
Shubhada Pande
Shubhada Pande
@ShubhadaJP
Job description

Paxos Labs builds enterprise-grade infrastructure for trusted on-chain financial products. Working alongside major global financial institutions and platforms, Paxos Labs develops transparent, verifiable, and regulated on-chain systems designed to bring digital assets, tokenization, and DeFi into mainstream institutional use.

Role Summary

You will focus on building Transit, Paxos Labsโ€™ liquidity orchestration and distribution network for tokenized assets. While asset tokenization is generating thousands of on-chain assetsโ€”stablecoins, money market funds, commodities, and private creditโ€”issuers constantly face liquidity fragmentation.

Transit acts as an institutional liquidity layer powered by a real-time RFQ orchestration engine that aggregates DEX and solver liquidity, manages LP pools, enforces regulatory compliance, and delivers predictable pricing for enterprise clients. As a Senior Backend Engineer, you will advance Transitโ€™s technical roadmap from 0 to 1 and harden mission-critical financial backend systems.

Key Responsibilities

  • Core Engine Engineering: Build, harden, and scale Transitโ€™s real-time RFQ orchestration engine, aggregating DEX and solver liquidity for large-scale enterprise execution.

  • On-Chain Integration: Interface directly with the on-chain surface layerโ€”integrating smart contracts, mint/redeem facilities, and compliance enforcement workflows.

  • Financial Correctness: Own backend systems where financial correctness and zero-defect execution are paramount.

  • Technical Direction: Set architectural standards and guide technical decision-making on a lean, high-ownership team.

  • Mentorship & Quality Bar: Elevate engineering rigor across the team through design reviews, testing standards, and mentorship.

Requirements & Qualifications

Must-Haves

  • Senior Backend Track Record: 6+ years of experience building, deploying, and operating production backend systems with direct ownership over high-availability services.

  • Zero-to-One Delivery: Demonstrated experience taking technical architectures from 0 to 1 and hardening them for production scale.

  • Financial Infrastructure Experience: Deep background building systems where correctness is financial (e.g., exchanges, trading platforms, order routing, clearing, or settlement systems).

  • Market Structure Comprehension: Strong grasp of traditional exchange market mechanics (CLOBs, RFQs, batch auctions) across economic, incentive, and technical dimensions.

  • Smart Contract Literacy: Ability to read Solidity code, trace transactions, and reason through contract interactions and state changes.

  • Quantitative Judgment: Solid judgment regarding latency, inventory risk, and execution quality, with the communication skill to explain pricing logic across technical and business stakeholders.

Nice-to-Haves

  • Direct background working at a proprietary trading firm, algorithmic market maker, or crypto exchange.

  • Multi-chain infrastructure experience, particularly in cross-chain inventory or treasury management.

  • Prior domain work with tokenized assets, stablecoins, or real-world assets (RWAs).

Compensation & Perks

  • Total Rewards: Highly competitive base salary package with meaningful equity participation.

  • Work Setup: Hybrid flexibility (NYC preferred) or remote collaboration.

  • High Impact: Direct architectural ownership over financial infrastructure that top-tier global institutions depend on.

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